DONT! If you cant take your 22 rimfire can apart to clean then its not worth the $200 tax stamp. I dont know who is telling you to buy the Aviator or where you read that its a great can, but its not. Sure its quiet, but it has a limited life as its a sealed unit like the Gemtech Outback and many others. The best 22 can on the market today is the SilencerCo Stainless Steel Sparrow. Other good models are the SWR Spectre, AAC Element, Prodigy, and Gemtech Alpine. If you cant find a Sparrow then the Spectre is a great all steel can for dipping in cleaning solvents. Aluminum cans are hard to clean as anything that removes lead build-up on baffles also eats aluminum, so go steel if you can. The 22 rimfire is a filthy cartridge and if there is ever a need to clean a silencer its definitely the 22 cans.
This is one train of thought but, I have to disagree. I know of a SOT that has over 35,000 rounds through a Aviator with no problems. If you check with the manufactures more 22 can are sent in for service for being cross treaded by the end user than baffle strikes.
If I recall correctly the manufacturer can replace the outer tube with the same SN and all is good. As far as where to get it looks like you have some good contacts.
What ever you do, take more advice from customers with experience and not class 3 dealers pushing their inventory.
Silencers are illegal!
better move this talk to PM's
Silencers are not illegal. They are NFA title 2 items. That can be purchased through a Class 3 dealer and the paper work must be sent to the BATFE in the form of a Trust or signed off by the local Sherif.
Why would you say they are illegal?